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Electroretinograms, retina analysis, behavioural observations and gut content and clearance rate of notothenioid Antarctic fish to determine the importance of visual function in feeding
Entry ID: K012_1987_1988_NZ_1


Summary
Abstract: The visual function in Pagothenia borchgrevinki was investigated in relation to their feeding by relating feeding with the vertical stratification of zooplankton and then determining their visual sensitivity and the environmental light levels to assess the relative importance of visual and non-visual sensory systems in feeding. Recordings of the electroretinograms (ERG - the electrical response of the retina to imposed light flashes) were made on 30 specimens with the absolute threshold for the ERG, and spectral properties of the response determined and the tucker-fusion rate determined to assess cone thresholds. The response of adult male, adult female and pre adult fish were compared. Retina material was fixed for histological determination of retinal parameters. Behavioural observations were made using an infra-red video system to determine the visual threshold for feeding. Gut clearance rates were determined where on 4 occasions large (>50) samples of fish were caught and subsamples sacrificed at successive 6 hourly intervals to measured gut clearance rate. The visual function in three benthic species of Antarctic fish (Trematomus bernacchii, T. hansoni and T. contronotus) was investigated with ERG's recorded, gut contents analysed and morphological and histological studies of the eyes completed to compare with their dietary preferences to assess the role of vision in feeding.
Geographic Coverage
 N: -77.85 S: -77.85  E: 166.75  W: 166.75

Temporal Coverage
Start Date: 1987-10-24
Stop Date: 1987-11-22


Location Keywords
OCEAN > SOUTHERN OCEAN
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
AGRICULTURE >ANIMAL SCIENCE >ANIMAL PHYSIOLOGY AND BIOCHEMISTRY    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH >RAY-FINNED FISHES
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH >RAY-FINNED FISHES >PERCH-LIKE FISHES


ISO Topic Category
BIOTA


Platform
LABORATORY    [Information]
FIELD INVESTIGATION    [Information]


Keywords
Notothenioid
feeding behaviour
retina


Data Set Progress
COMPLETE


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
JOHN MACDONALD
Role: INVESTIGATOR
Phone: +64 9 423 9387
Email: ja.macdonald at xtra.co.nz
Contact Address:
Omiha Farm
City: Wellsford
Postal Code: 0972
Country: NEW ZEALAND


JOHN MONTGOMERY
Role: INVESTIGATOR
Phone: +64 9 373 7599 xt 83611
Fax: +64 9 422 6113
Email: j.montgomery at auckland.ac.nz
Contact Address:
Leigh Marine Laboratory
University of Auckland
Private Bag 92019
Auckland Mail Centre
City: Auckland
Postal Code: 1142
Country: NEW ZEALAND


RUFUS WELLS
Role: INVESTIGATOR
Phone: +64 9 373 7599 xt 87206
Fax: +64 9 373 7415
Email: r.wells at auckland.ac.nz
Contact Address:
School of Biological Sciences
University of Auckland
Private Bag 92019
Auckland Mail Centre
City: Auckland
Postal Code: 1142
Country: NEW ZEALAND


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Pankhurst, N.W. Montgomery, J.C. Visual function in four Antarctic nototheniid fishes. Journal of experimental biology 142: 311-324, 1989.

Pankhurst, N.W. Montgomery, J.C. Ontogeny of vision in the Antarctic fish Pagothenia borchgrevinki (Nototheniidae). Polar biology 10(6): 419-422, 1990.

Pankhurst, N.W. Growth and reproduction of the Antarctic nototheniid fish Pagothenia borchgrevinki. Polar biology 10(5): 387-391, 1990.

Macdonald, J.A. Montgomery, J.C. Wells, R.M.G. The physiology of McMurdo Sound fishes: current New Zealand research. Comparative biochemistry and physiology 90B(3): 567-578, 1988.

Montgomery, J.C. And Pankhurst, N.W. 1997. Sensory biology. In: Randall, D.J. And Farrell, A.P. (Eds.) Deep sea fish. Fish Physiology Series, Vol. 16. Academic Press, San Diego, pp. 325-349.

Montgomery, J. Macdonald, J. Evolution of sensory systems: a comparison of Antarctic and deep-sea ichthyofauna. In: Fishes of Antarctica: a biological overview.Di Prisco G. Pisano E. Clarke A. (eds) Milano, New York: Springer-Verlag. 1998. pp.329-338 ISBN 8847000289

Creation and Review Dates
DIF Creation Date: 2009-01-08
Last DIF Revision Date: 2016-11-18



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